create_github_pr · Git PR MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_github_pr does on Git PR MCP Server

AI agents use create_github_pr to create or update resources in Git PR MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Git PR MCP Server environment.

WHY IT NEEDS A POLICY

Why create_github_pr needs a policy

Creating a pull request is a write operation that adds new data to the repository's PR system and can trigger automated workflows, CI/CD pipelines, and notifications. While reversible (PRs can be closed), the impact is significant enough to warrant 'high' severity due to potential for unintended CI/CD triggers, code review disruptions, or spam PR creation if an AI agent misuses this without proper safeguards.

From the tool's definition Tool description states it 'Creates a pull request on GitHub' - the verb 'Creates' and the action of submitting a PR demonstrates data creation/modification. PR creation is a reversible action (PRs can be closed/deleted).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_github_pr Rate-limited

create_github_pr stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_github_pr": {
      "limits": [
        {
          "counter": "create_github_pr_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Git PR MCP Server, so you can run agents against it safely.

FAQ

Questions about create_github_pr

What does the create_github_pr tool do? +

Creates a pull request on GitHub for the active repository using PyGithub. It is categorised as a Write tool in the Git PR MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_github_pr? +

Register the Git PR MCP Server MCP server in PolicyLayer and add a rule for create_github_pr: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Git PR MCP Server. Nothing to install.

What risk level is create_github_pr? +

create_github_pr is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit create_github_pr? +

Yes. Add a rate_limit block to the create_github_pr rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block create_github_pr completely? +

Set action: deny in the PolicyLayer policy for create_github_pr. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides create_github_pr? +

create_github_pr is provided by the Git PR MCP Server MCP server (peterj/git-pr-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.